Closure for packing containers



May W, E9330 K. w. MAUSER CLOSURE FOR PAC KING CONTAINERS 5 Sheets-Sheet 1 Filed Dec. 20, 1954 10, 1938. K. w. MAUSER 2,116,841

CLOSURE FOR PACKING CONTAINERS Filed Dec. 20, 1954 s Sheets-Sheet 2 wydsr w. MAUSER CLOSURE FOR PACKING CONTAINERS 5 Sheets-Sheet 5 Filed Dec. 20, 19:54

n m F Patented May 10, 1938 UNITED" STATES PA ENT OFFICE I 2,11s,s41 cnosuan ron PACKING comamnas Karl Wilhelm Mauser,

Application December- 2 In- Germany wiiioeoii, Bel. Kalle],

'0, 1934, Serial No. 15am" December 23, 1983 12 Claims. (01. 220-61) There has hitherto been no suitable tension ring closure which is simply and easily'operated, oflers a possibility ot absolutely certain fastening and also has the advantages of cheapness so that it can also beused in all the cases where it has hitherto been impossible on account or the high cost oi. manufacture.

' According to the invention the tension ring closure is'actuated in such a manner that the tenslon ring is stretched intothe closed position bymeans of pliers, made for this purpose. With this object in view holes are provided at the ends of the tension ring in which the jaws of the pliers engage. Furthermore, the ends oi the ring are provided with simple closure members which au 55 tomatically come into engagement, either by interlocking or catching one behind the other, or are held by being embraced by additional means and thereby securing the tension ring in the closed position.

w This tension ring closure which allows oi various securingmeans being selected is very cheap in manufacture on account of its simplicity. Consequently it is now possible. to use the advantageous tension ring closure for removable covers 35 in all g containers where its use was for-v merly excluded on account oi the high cost.

Since there are no actuating means secured to the tension ring there are no projections so that the ring closure can serve for rolling- In this w case the tension ring may be provided with a reinforcing ridge extending around it. The clo sure members themselves are protected by the edge 01' the cover. a a The invention will be further explained with reference to the constructional examples illustrated in the accompanying drawings. Similar parts have similar references in all figures.

Fig. l is a cross-sectional view of my improved closure applied to a receptacle, only a fragment of said receptacle being shown, and said frag-- ment being also in section.

Fig. 2 is a side elevation of the closure shown in Fig. 1, with a portion or said closure and a ir'agin meat oi the receptacle being shown in section.

Fig. 3 is a view similar to Fig. 2 but showing a modification of my invention. FlFig. 4 is a top plan view'oi the closure shown in Fig. 515 a side elevation, partly in section of a 5 further modification of my invention.

Figs. 6, 7, and 8 show another modified form of closure applied to a receptacle, in side elevation,

top plan and cross section respectively,

Figs. 9, l0, and 11 are views similar 6, 7, and 8 respectively 0! another modified form ot'my invention, the section in Fig. 11 being taken \i on the line A-& 0! new,

Fig. 12 is a front elevation, partly in section of a still further modification of my invention, the

'section being taken on line 0-0 of Fig. 13,

Fig. 1a is a top plan view or the modified rorm of the invention shown in Fig. 12,

Fig. 14 is a sectional view of the same, taken on the line AA 01' Fig. 13, r 20 Fig. 15 is another sectional view similar to Fig. 14 but taken on the line B--B of Fig. 13,

Figs. 16 and 17 show a top plan view and a front elevational view respectivelyot still another modiiied form of closure, the elevational view being partly in section, the section being taken s on the line D-,-D 01' Fig. 1.6.

' Referring to the drawings in detail, Figures 1 andii illustrate in cross-section and side elevation a closure construction in which the tension ring is held in the closed position without additional The numeral i designates my improved tension ring which is adapted to be mounted on the cover 2'01 the container for maintmning said cover in closed position on the wall 8 of the container. Suitable'packing 8 may be provided between the cover 2 and the wall 3 of the container. The ends of the tension ring are enlarged by the thickness of the closure members 4 secured thereto on the inside. The closure members 4 consist 4 of double flat strips which may be brought into engagement by any suitable means, not shown. When the ring I is iixed on the cover 2, the lug i5 provided on the one closure member slides over the curved guiding surface 4a of the other closure 4 member and thereby forces the members resiliently apart.- When the closed position is reached the lug I! which may be aninserted bolt, snaps automatically into the corresponding opening lie of the other closure member. cured partly by means of a recess lib which prevents loosening of the closure member engaging behind it. In addition the lug II has at the pro .iecting end aboring it for receiving a seal cord;

lnl iguresiiandlaclosure'constmctionisiliusiii to Figs. 1c

The closure is'setrated in which the one closure member d is bent over at the end, the bent over part 2i when the ring is fixed, on sliding over the curv surface engaging automatically behind e other closure member 6 and thus holding the tension ring in the closed position. A lug it: open at the side pressed out of the closure memb r 3 simultaneously snaps into the opening 2% or the bent over closure member i. The projecting aperture it of the lug receives the seal cord.

Figure 5 shows a closure construction in which both ends of the closure members are bent over. The bent over part 22 of the closure member 3, behind which the bent over part 2i lies, cat in an opening of the other closure member 41 and together with the projecting end of the boring 38 receives a seal cord.

Figures 6, 7, and 3 show in elevation, plan and cross-section a constructional form of the tension ring closure which completely meets all requ rements asregards security. The one closure mem= beris again provided with a bent over part 26 which engages behind the other closure member.

Both closure members 3 have longitudinal bushlugs 26 and 2'5, rolled out oi their own material, which in the closed position of the tension ring 6 lie coaxially one in front oi the other so that their openings coincide with the boring 2 3 provided in the bent over part 25, and maize it possible to insert the securing pin .28. The latter again has at the projecting end a boring for receiving the seal cord.

It is shown in the constructions according to Figures 3 to 8 how the closure members are reinforced by means of ribs pressed-therein so that thleiylcan be made from comparatively thin ma- Figures 9 and 10 show a further improved construction.

The end of one closure member carrying the engaging part covers the securing pin within the bushing of the other closure member. For this purpose the bushing of the rear closure member is extended downwardly and is left open at the top as far as is necessary for the engaging part to pass. The closure can then not be opened as long as the seeming pin is in the bushing. The

pin itself is secured in the known manner by -means of a seal. With the construction described it is possible to bend over the engaging part or the one closure member only to an extent corresponding to the thickness of the other closure member. The low projection of the bent over -part produces only a small spreading of the closure members in sliding over the opposite part. An undesired deformation of the ends oi the ring and a diminution of the spring action of the closure members is particularly avoided.

A further advantage consists in this, that the closure member can be made shorter in the direction towards the middle of the container, which is desirable with regard to the pressing on of the ends of the ring on the edge of the container.

member d formed by pressing and engages be'' hindthis when the closed position is reachedfon account of the spring action ofthe engaging guiding.

end. Through the bushings m and n which now lie side by side, a securing pin g is placed which at its free end has a holeh for receiving the seal cord. Figure 11 shows how the bushing m is left open at the top as far as is necessary for the passage of the bent over part c. It is further shown how the engaging part of the closure member d covers the securing part 9.

According to a further feature of the invention the closure members provided at the ends of the ring are so constructed that in the closed position they take up a shape which makes it possible to fit on a known securing cap. The construction of the closure members is thereby considerably simplified because it becomes unnecessary to provide bushings for apin. This fact, together with the absence of the sealing parts or the sealing device, causes the cost of manufacture to be considerably reduced. While with the sealing arrangement it is possible that, for exampic, on account of the damage which may easily occur or on account of skilful manipulation that the closure can be opened by unauthorized per sons, this danger is completely avoided by a securing cap constructed in a known manner. The cap secures the closure parts not only against undesired and unauthorized opening, but also on account of the complete enclosing of the engaging closure means, against accidental damage and against other undesired external influences. The u closure has a pleasing appearance. The surface of the cap offers the possibility of applying a suitable advertisement.

In the constructional form according to Figures 14-17 the engagement members I and h are made semicircular in the upper part so that in the closed position they form a complete circle. In order to obtain a suitable abutment for the securing cap m, the closure members (1 and d are ofiset in the form It, whereby the semi-circular closing parts f and h are formed. In addition, the closure parts J and h have an edge 2' at the height of the parts 2 and h which engage one over the other in order topbtain a uniformly thick abutment for the cap m. The edge 2' is interupted only at the place where the part e, which engages behind, is led through. In the closed. position of the closure, the cap m is placed over the closure members and h and by means of a closing tool the collar 12 of the cap is drawn together in a known manner under the closure members so that these are secured in the engaging position and against unauthorized handling. The opening of the closure can be eilected only after removing the cap m by destroying it.

Unauthorized handling of the securing cap on account of the notches provided on the edge 12 or the cap would cause it to be destroyed and can therefore be detected.

Figure .15 shows how the edge 2' can be extended in the form 0 so as to bear against the cover b of the containerwhich may simplify the closing of the seal. Otherwise this extension 0 may act as abutment against the correspondingly shaped guiding member 11 secured to the cover b in order to ensure that the ends of the. tension ring will bear firmly against the edge of the container.

Figures 16 and 1'7 show a further modification oi the closure in which the closure member ,1 and h each have a completely circular shape. This is only interrupted .in the closure member f at the place where the part e, which engages behind the closure member h forms the completion. The closure members ,f and h thus coincide completely in the closed position. This construction makes 13 for example, it is shown in broken lines that the closure members I and h can have a polygonal shape instead of a circular shape. Even with a rectangular construction 01' the closure members the application of a suitably shaped sealing cap would make it possible to secure the closure suiilciently.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:-'-

l. A tension ring closure for packing con tainers, comprising a tension ring, closure ele-' ments projecting from the ends of the tension ring at an angle less than 180 and adapted to engage together when the tension ring is brought into the cl position, and means integral with at least one or said closure elements and detachably engaging the other one oi said closure elements for locking the latter in the engaged position. I

2. A tension ring closure ior packing containers comprising a tension ring, closure elements projecting from the ends of the tension ring at an angle less than 180 and adapted to engage together when the tension ring is brought into the closed position, and means integral with at least one of said closure elements and. detachably engaging the other one of said closure ele-.

, at an angle less than 180 and adapted to engage together when the tension ring is brought into the closed position, and means forming a permanent part oi at ione oi said closure elements and having detachable snap engagement with the other one of said closure elements for locking the latter in the engaged position.

i. A tension ring closure for packing containers, comp a tension ring, closure elements projecting from the ends of the tension ring at an angle less than 13!) and adapted to engage together when the tension ring is brought into the closed tion, and means forming a permanent part of at least one oi said closure elements and having detachable snap engagement with the other one of 1 m1 closure elements ior locking the latter in the engaged ition, at least one of said closure elements having an inclined guiding surface for guiding said means into snap enement with the closure members.

5. A tension ring closure tor packing containers, comprising a tension ring, closure elements projecting from the ends or the tension ring at an angle less than and adapted to engage together when the tension ring is brought into the closed position, and means forming a permanent part of at least one of said closure elements and having detachable snap engagement with the other one oi said closure elements for locldng the latter in the engaged position, the last mentioned closure element having an aperture and an inclined guiding surface for guiding said. means into snap engagement with said aperture.

6. A tension ring closure for packing containers, comprising a tension ring, closure elements projecting from the ends of the tension ring at an angle less than 180 and adapted to engage together when the tension ring is brought into the closed position, and means forming a permanent part of at least one of said closure elements and having detachable snap engagement with the other one of said closure elements tor locking the latter in the engaged position, the last mentioned closure element having an aperture, and said means including a bolt extending into said aperture, said bolt being recessed and adapted to engage the wall of said aperture ior normally maintaining said bolt in engagement with said apertured element.

7. A tension ring closure for packing containers, comprising a tension ring, closure elements projecting from the ends of the tension ring at an angleless than 180 and adapted to engage to,- gether when the tension ring is brought into the closed position, and means forming a permanent part of at least one of said closure elements and having detachable snap engagement with the other one of said closure elements for locking the latter in the engaged position, said last mentioned means including a flange on the end of one of said elements and extending substantially at right angles to the plane of said elements.

8. A tension ring closure for packing containers, comprising a tension ring, closure elements projecting from the ends oi the tension ring at an angle less than 180 and adapted to engage together when the tension ring is brought into the closed position, and means forming a permanent part of at least-one of said closure elements and having detachable snap engagement with the other one of said closure elements for locking the latter in the engaged tion, said last mentioned means including a if 1; on the end ofo'ne oi said elements, w at substantially right angles to the plane of d elements, and abutting against the end of the other closure member, at least one of said clre elements having an inclined guiding surface for guiding the flange on the end of one of said elements into abutting relation with he end of the other closure element.

9. A. tension ring closure for packing containers, comprising a tension ring, closure elements pro- Jecting from the ends or the tension ring at an angle less than 180 and adapted to engage together when the tension ring is brought into the closed position, and means forming a permanent part of at least one of said closure elements'and having detachable snap engagement with the other one oi said closure elements for locking the latter in the engaged position, each of said elements being provided with a substantially tubular portion, and means arranged within said tubular portions 101' locmng said first means in engagement with the closure element, and preventing displacement of one element relatively to the other, a

10. A tension ring closure for packing containers, comprising a tension ring, closure elements projecting from the ends of the tension ring at an angle less than 180 and adapted to engage together when the tension ring is brought into the closed position, and means forming a permanent part 01' at least one of said closure elements and having detachable snap engagement with the other one of said closure elements for locking the latter in the engaged position, each of said elements being provided at its inner edge with a substantially tubular portion, an elongated member extending through said tubular portions for preventing displacement of one element relatively to the other element, and means for locking said member in position within said tubular portion.

11. A tension ring closure for packing containers comprising a tension ring, closure elements projecting from the ends of the tension ring at an angle less than 180 and adapted to engage together when the tension ring is brought into the closed position, and means integral with at least one of said closure elements and detachably engaging the other one of said closure elements for locking the latter in engaged position, said last mentioned means including an inclined surface on one closure element, an abutment surface terminating the inclined surface, and an engaging part on the other closure element adapted to slide along the inclined surface and engage with the abutment surface, said engaging part, inclined surface and said abutment surface forming a substantially circular member.

12. A tension ring closure for packing containers comprising a tension ring, closure elements projecting from the ends of the tension ring at an angle less than 180 and adapted to engage together when the tension ring is brought into closed position, means forming a permanent part of at least one of said closure elements and having detachable snap engagement with the other one of said closure elements for locking the latter in the engaged position, one of said closure elements having an inclined guiding surface for guiding said means into snap engagement therewith, an abutment terminating said inclined surface, said means including a projecting lug on the other closure element adapted to slide along said inclined surface into engagement with said abutment, said abutment, lug, and inclined surface forming a substantially circular member.

KARL WILHELM MAUSER. 

